/Engine/Source/Runtime/Engine/Classes/GameFramework/Actor.h
Checks to see if this actor is relevant for a recorded replay
bool - true if this actor is replay relevant to the client associated with RealViewer
virtual bool IsReplayRelevantFor ( const [AActor](API\Runtime\Engine\GameFramework\AActor) * RealViewer, const [AActor](API\Runtime\Engine\GameFramework\AActor) * ViewTarget, const FVector & SrcLocation, const float CullDistanceSquared ) const